Project Description
Nimonic 80A (UNS N07080 / W.Nr. 2.4952, 2.4631)
Nimonic 80A (UNS N07080 / W.Nr. 2.4952, 2.4631) is a wrought, age-hardenable nickel-chromium alloy. Nimonic 80A is similar to Nimonic 75 but made precipitation hardenable by additions of aluminium and titanium. Alloy 80A has good corrosion and oxidation resistance and high tensile and creep-rupture properties at temperatures to 815℃ (1500ºF). Vacuum refined versions are also available. It is used for gas-turbine components (blades, rings, discs), bolts, tube supports in nuclear generators, exhaust valves in internal combustion engines and has many other offshore/marine, automotive and electrical applications.
Equivalent Grades
Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
Nimonic 80A | GH4080A | – | – | N07080 | NiCr20TiAl | 2.4952 2.4631 | NiCr20TiAl NC20TA | NiCr20TiAl N80A | NCF80A | – |
Chemical Composition, %
Alloy | C | Si | Mn | P | S | Cr | Ni | Co | Al | Ti | Cu | Fe |
Nimonic 80A | ≤0.10 | ≤1.00 | ≤1.00 | ≤0.020 | ≤0.015 | 18.0-21.0 | Bal | ≤2.00 | 1.0-1.8 | 1.8-2.7 | ≤0.50 | ≤3.00 |
Typical Physical and Mechanical Properties (RT, Solution Annealed+Aged)
Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HRB |
8.19 | 1320-1365 | 1250 | 780 | 35 | / |
Available Products and Specifications
Rod, Bar, Wire and Forgings | ASTM B637, BS 3076&HR1 |
Plate, Sheet and Strip | BS HR 201 |
Pipe and Tube | BS HR 401 |
Welding Product | – |
Others | DIN 17742 |
Features
- High oxidation and corrosion resistance
- Outstanding mechanical properties after age hardening
- Suitable for applications where elevated temperatures and continual stresses are a primary consideration
- Good machinability
- Easily welded
Applications
- Gas turbine engineering
- Automobile exhaust valves
- Die-casting inserts and cores
- Nuclear boiler tube parts.